I'm Jay DeFehr, formulator of 510-Pyro, Hypercat, and GSD-10. My favorite photo subjects are my family and friends, and interesting strangers. I divide my time between various oil fields around the world and my home in Idaho.I hope these blogs serve useful or interesting to those intrepid photographers who use my developers, and serve as both a repository of information and experience, and a venue for discussion. Welcome, and enjoy!
2 comments:
I use 510-pyro and love it. I will share my data and result here.
Thanks, Freelancer! I look forward to your contributions.
Jay
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